Content
Zero Conditional (if clause)
To form the Zero Conditional, you have to mention a real condition and a result that always happens:
If Clause
If Condition
Present Simple
Main Clause
Result
Present Simple
A real condition refers to:
- General Truths
- Natural Laws
- Scientific Facts
- Facts
- Habits
- Daily Routines
- Rules
Examples:
If you heat ice, it melts.
(This is a scientific fact, so every time someone heats ice, it is going to melt.)
If students do not study for exams, they fail them.
(This always happens, so students have to study if they want to pass the exams.)
We also use when instead of if when we are sure that the conditions are going to happen.
- When you heat ice, it melts.
- When students do not study for exams, they fail them.
We also use unless instead of If not:
- Unless you eat healthily, you get overweight.
- Unless students study before exams, they fail them.